Improvement in bakers  ovens



A. B. SMETH.

Bakers Oven.

Patented July 30,1872.

U ITED STATES AMos B. SMITH, 0F GENEVA, NEW YORK.

IMPROVEMENT IN BAKERS OVENS.

Specification forming part of LettersPatent No. 129,993, dated July 30,1872.

SPECIFICATION. 7 Be it known that I, AMOS B. SMITH, of Geneva, in thecounty of Ontario and State of New York, have invented a certain new anduseful Steam-Oven, of which the following is a specification: I

The object of my invention is to provide steam-ovens with double-walleddoors, leaving fitted, so as to close tightly,,and the pintles a oftheir hinges h are made hollow, as shown. The cavity 6 opens into thesteam-space between the walls of the case A. There are, also, openings 0into the doors, registering to the openings 1' of the pintles when thedoors are closed; or the pintles may be shorter vertically than thecavity in the female portion of the hinge, in which case thesteam-passage into the doors would remainuninterrupted, whether theywere opened or closed. Small drip-cocks may be applied at the'lower edgeof the doors, as shown by dotted lines at d, or the lower hinge may beplaced at the extreme lower corner of the door, and the steam-passagethrough that hinge be thereby made to act as a drip-passage from thedoors into the case A. A drip-cock for the latter may be placed as shownby dotted lines f, Fig. 2. Angle-irons or brackets may be fixed to theinner wall of the case for any desired number of shelves or gratings.The steam may be admitted to the steam-space S through the steam-pipe P,leading from the boiler or generator. The doors may be provided with anysuitable latch or catch. An ordinary air-valve may be attached to theupper side of the oven and to the doors, if necessary. T

What I claim as my invention is- In combination with the steam-oven caseA, double-walleddoors having hollow-pintled hinges, for the purposes setforth.

A. B. SMITH.

Witnesses PATRICK MGINTYRE, THOMAS A. QHARE.

